I'm a new member, and have a couple of questions to start off my restoration. I have purchased 2 Atco mowers, 12” cutting blade. The plates say ‘6221’, and they both have Villiers 4 stroke engines, numbers: 411D 60377, and 404D 1927. Is there a way of dating these numbers?
Also, I am unsure about how to drain and refill the Oil. I can see a rubber flanged bung with a knurled screw on the crankcase,but when I undo the screw fully, it won’t withdraw. Am I missing something, or should I be a little more forceful with it? Photo attached.
Any help would be very welcome.